In 2008, American Thomas Beatie hit the headlines by becoming the first transgender man to become pregnant and give birth.
Beatie was born female, but kept his female organs while transitioning.
He turned to home insemination from a donor after his wife was unable to conceive following a hysterectomy.
Since then, several other transgender men around the world have followed in his footsteps.
Now 20 year old Hayden Cross is to become the first British man to become pregnant in the UK.
The supermarket worker from Gloucester put hormone treatment on hold in order to become pregnant.
Cross had requested that his eggs be frozen so that he could have children later in life, but the NHS refused the £4,000 treatment.
Because of that, he decided to have a baby via a sperm donor, as this would be his only chance to become a biological parent.
Cross told The Sun:
I want the baby to have the best. I’ll be the greatest dad.